NDLI: Boundaries and scales in shrublands of the Doñana Biological Reserve, southwest Spain

Content Provider	Springer Nature Link
Author	Muñoz Reiso, José Carlos
Copyright Year	2009
Abstract	To verify that the stabilized sand dunes of Doñana, southwest Spain, are hierarchically nested, vegetation was sampled along topographic gradients at three spatial scales and Split Moving Window Boundary Analysis was applied to identify vegetation boundaries and ecotones. At small scale, only one window width was used, while for boundaries detection at upper scales the information from five windows was pooled. Environmental factors controlling plant composition were studied along topographic gradients, and diversity was estimated within the boundaries. According to several theoretical frameworks, I discuss the types of boundaries produced at different scales. Lower level boundaries are characterized by transitory gradients linked to local exchanges; intermediate boundaries are symmetric and very stable over the time; the large scale boundary is asymmetric with strong inherent abiotic constraints reinforced by strong biotic feedbacks. In spite of a similar plant composition, a plant community, the mixed shrub, works as an ecocline or an ecotone depending on the spatial scale considered. A certain parallelism exists between shrub composition along dune slopes and dune generations; however, processes at upper scale constraint plant composition at lower scale resulting in different mature formations.
Starting Page	509
Ending Page	518
Page Count	10
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	24
Issue Number	4
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-02-04
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Boundaries Doñana Ecocline Ecotone Nested hierarchy Split Moving Window Shifting transition Stationary transition Plant Sciences Ecology Forestry Plant Ecology Landscape Ecology Forestry Management
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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